Sequence Similarity : Homologous sequences (>30%) SEQUENCE SIMILARITY (%) 1f5vA 2p1jA 4xr9A 1f5vA 100 63 62 2p1jA 58 100 72 4xr9A 65 40 100 FOLD SIMILARITY (Z-SCORE) 1f5vA 2p1jA 4xr9A 1f5vA 37.3 0 0 2p1jA 0 27.8 0 4xr9A 0 0 63.8